diff --git a/src/net/micode/notes/data/Contact.java b/src/net/micode/notes/data/Contact.java
index f737c15..4f4b798 100644
--- a/src/net/micode/notes/data/Contact.java
+++ b/src/net/micode/notes/data/Contact.java
@@ -45,7 +45,7 @@ public class Contact {//创建类
         if(sContactCache.containsKey(phoneNumber)) {
             return sContactCache.get(phoneNumber);
         }
-
+        // 动态生成查询条件：设置最小匹配长度
         String selection = CALLER_ID_SELECTION.replace("+",
                 PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
         Cursor cursor = context.getContentResolver().query(